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Oil Formulation And Flat Tappet Cams Engine Oil Guide

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As we learned in "The Slippery Truth About Oil" in the June '06 issue of HPP, the American Petroleum Institute (API) sets the oil category standards, and its latest SM/GF-4 and CJ-4 certifications include lesser amounts of ZDDP, which many feel is a contributing factor to the high number of flat-tappet camshaft failures today. Additional information about the rating system can be found at www.api.org.
Juggling The Truth About Today's Oil - Engine Oil Tech

 As we learned in "The Slippery Truth About Oil" in the June '06 issue of HPP, the American Petroleum Institute (API) sets the oil category standards, and its latest SM/GF-4 and CJ-4 certifications include lesser amounts of ZDDP, which many feel is a contributing factor to the high number of flat-tappet camshaft failures today. Additional information about the rating system can be found at www.api.org.  View Related Article

 

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